Thanks for replies...
Didier: There were no specific parts (except one), just wanted to know if there was a good general supplier for Amplifier parts and bits, etc in the UK, that people on here would recommend.
Dave R: With regards to the reverb unit; I have a Vox AC15 amp which has a reverb unit built in (not original 60s era) and i understand several others do - though maybe this is only from the 90s on. It was for one of these such amps that a reverb unit was required for - as a straight replacement for a broken original.
So same again, didn't know if there is a supplier out there (UK) who specialises in such reverb units - be it Vox or pattern parts, but i imagine that someone on here would know of such a supplier. The only suppliers i have found so far on the net are all US based
So if anyone can provide info on suppliers,etc, it will still be much appreciated.
Mark.